Pith Number

pith:QAT7FUUJ

pith:2008:QAT7FUUJWQWH443MBOXQ24EFL3

not attested not anchored not stored refs pending

Topology of generalized complex quotients

Thomas Baird, Yi Lin

arxiv:0802.1341 v2 · 2008-02-10 · math.DG · math.SG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QAT7FUUJWQWH443MBOXQ24EFL3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:16:01.187266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8027f2d289b42c7e736c0baf0d70855ec7a71b474ff9543b3de2a7f20626bf6a

Aliases

arxiv: 0802.1341 · arxiv_version: 0802.1341v2 · doi: 10.48550/arxiv.0802.1341 · pith_short_12: QAT7FUUJWQWH · pith_short_16: QAT7FUUJWQWH443M · pith_short_8: QAT7FUUJ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QAT7FUUJWQWH443MBOXQ24EFL3 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8027f2d289b42c7e736c0baf0d70855ec7a71b474ff9543b3de2a7f20626bf6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "843fff8fd24aa02c719c17637d1ce245c8ded0eea34abdc7351b16e9d37bdcd2",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-02-10T18:52:45Z",
    "title_canon_sha256": "f0d0ed8b043afbcb663328a29bc8869558837f5738407c7303d8257398752ad4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.1341",
    "kind": "arxiv",
    "version": 2
  }
}